All-Topology, Semi-Abstract Syntactic Features for Text Categorization Ari Chanen author Jon Patrick author 2008-12 text Proceedings of the Australasian Language Technology Association Workshop 2008 Nicola Stokes editor David Powers editor Hobart, Australia conference publication chanen-patrick-2008-topology https://aclanthology.org/U08-1004/ 2008-12 19 27